Flamingo TTI wants to setup a new computer laboratory. a) Identify any THREE categories of input devices they may use giving examples. b) State any THREE differences between impact and non-impact prin

here are the answers to Section B:

15. Flamingo TTI wants to setup a new computer laboratory. They consulted you to assist them.

• a) Identify any THREE categories of input devices they may use giving examples.

  • Pointing Devices: Used to control the cursor or select items on the screen.
    • Examples: Mouse, Trackpad, Touchscreen.
  • Text Input Devices: Used to enter text and commands.
    • Examples: Keyboard.
  • Image/Video Input Devices: Used to capture visual data.
    • Examples: Scanner, Webcam, Digital Camera.
  • Audio Input Devices: Used to capture sound.
    • Examples: Microphone.

• b) They also want to install printers in the new laboratory. State any THREE differences between impact and non-impact printers.

  • Printing Mechanism: Impact printers use a physical mechanism (e.g., pins or hammers) to strike an ink ribbon against the paper, while non-impact printers form characters without physical contact (e.g., using ink spray or toner).
  • Noise Level: Impact printers are generally noisy due to the physical striking action, whereas non-impact printers are typically quiet.
  • Print Quality & Speed: Non-impact printers usually offer higher print quality and faster printing speeds compared to impact printers.
  • Carbon Copies: Impact printers can produce multiple carbon copies simultaneously, which non-impact printers cannot.

• c) Among the application programs they intend to install is Microsoft Word. Outline any FOUR word processing page formatting features of a word processor.

  • Page Margins: Adjusting the blank space between the edge of the page and the text.
  • Page Orientation: Changing the layout of the page to either portrait (vertical) or landscape (horizontal).
  • Page Size: Setting the dimensions of the paper (e.g., A4, Letter).
  • Headers and Footers: Adding content (like page numbers, document titles, or dates) that appears at the top (header) or bottom (footer) of every page.
  • Columns: Arranging text into multiple vertical sections on a page.

16.

• a) Outline any FOUR cyber-crimes that may face your college's data and information systems.

  • Phishing: Attempts to trick users into revealing sensitive information (like passwords or bank details) by impersonating a trustworthy entity in electronic communication.
  • Malware Attacks (e.g., Ransomware, Viruses): Malicious software designed to disrupt, damage, or gain unauthorized access to computer systems, often by encrypting data and demanding a ransom.
  • Data Theft/Breaches: Unauthorized access to and extraction of sensitive or confidential data from the college's systems.
  • Denial-of-Service (DoS) Attacks: Overwhelming a system or network with traffic to make it unavailable to its legitimate users.
  • Cyber Espionage: Unauthorized access to obtain secret or confidential information from the college for competitive or political advantage.

• b) The table below shows information pertaining to employees of Pachuu Company Ltd. Use it to answer the questions below.

  	A	B	C	D	E
  1	Name	Position	Grade	Salary
  2	Paul	Manager	1	6400
  3	Dennis	Accountant	3	5300
  4	Mary	Messenger	7	7000
  5	Nazizi	Clerk	6	9000
  6

  Write a spreadsheet function to compute each of the following:

  • i. Average salary. $$\boxed{\text{=AVERAGE(D2:D5)}}$$
  • ii. The total amount spent on salaries. $$\boxed{\text{=SUM(D2:D5)}}$$
  • iii. The maximum salary. $$\boxed{\text{=MAX(D2:D5)}}$$

• c) Edward wanted to have his own email address. State THREE parts his email address will contain.

  • Username (or Local Part): The unique identifier chosen by the user (e.g., "edward" in edward@example.com).
  • At Symbol (@): A separator that divides the username from the domain name.
  • Domain Name: Identifies the email service provider or organization (e.g., "example.com" in edward@example.com).